very serious or dangerous
When she fell out of the tree, the girl felt an acute pain in her arm.
ash
a powder made of tiny burnt pieces remaining after a fire ashes are the very hot, dusty substance left over from a fire.
commodity
something that is bought and sold
Handheld games are becoming quite the commodity among children these days.
crisis
a difficult or dangerous situation that needs serious attention
In an international crisis, the nation might find itself in short supply of products essential to national security.
drain
to remove (liquid) from something
The drain in the kitchen sink is blocked.
drastically
a lot; to a surprising amount or level
Henry's new haircut drastically changed the way he looks.
erupt
of a volcano, to send out rocks, lava, etc. in a sudden explosion
He said that the volcano probably erupted.
evacuate
to remove from an area of danger
More than 125,000 homes had to be evacuated in Nevada and California.
fertility
of soil, the ability to support the growth of plants
In India, people believe that rice is important to fertility.
harvest
the amount of crops gathered
The harvest is usually collected in the fall.
harvest
the amount of crops gathered
The harvest is usually collected in the fall.
hazard zone
a dangerous area
Over the past five years, about 11% of new houses have been built in flood hazard zones.
humanitarian
related to improving people's lives
Her humanitarian efforts were recognized by the United Nations.
imminent
happening very soon
The imminent sound of the bell made everyone nervous.
kilometer
a unit of length equal to 1,000 meters
I ran five kilometers this morning.
legendary
told about in stories that are believed by many but are not proven to be true
The legendary sword 'Excalibur', was pulled out by King Arthur.
logical
sensible; reasonable
This is not a logical decision.
loom
to appear in an impressively large or great form
The ominous clouds loomed over the school.
mighty
great and powerful
The mighty wrestler scared all who faced him.
monopoly
complete control of the entire supply of a good or service
Most governments have laws to prevent companies from becoming a monopoly.
pesticide
a chemical that is used to kill animals or insects that damage crops
We wash our fruits and vegetables to remove the harmful pesticides applied to them by farmers.
post-industrial
after the development of industries
A post-industrial utopia is often described as a world where stop the use of fossil fuel.
precious
very valuable and important
This necklace is very precious to me because it was my grandmother’s.
radius
an area that goes outward in all directions from a particular place
The radius of a circle is half the diameter.
revolt
to fight against, like a revolution
The Muslims of Spain revolted in the year 756.
summit
a meeting between leaders from two or more governments or organizations
I am the two hundred and ninth person to stand on the summit of Mount Everest.
swell
to expand; to grow bigger
The union membership swelled.
trickle
a slow, thin fl ow of water
Tears were trickling down her cheeks.
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